Critical Mass Vocal Artists (CMVA) is a semi-professional choral ensemble consisting of trained singers in the Treasure Valley that produces excellent choral music focusing on contemporary octavo literature of a high caliber along with educational outreach, directed by Dr. Michael Porter.

CMVA represents the finest in chamber choir performance in Southern Idaho. Its mission is to establish and maintain a tradition of choral excellence, to be a vital part of the arts in Idaho, and to enrich our communities through choral music, education, and performance. The singers of CMVA represent the Treasure Valley’s finest singers and choral educators, and who seek to inspire and engage their audience with a diverse repertoire and choral excellence.

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If you are interested in auditioning for Critical Mass Vocal Artists, please contact Michael Porter at

2021-2022 Season


Saturday, October 23, 2021 • 7:30 pm


J. S. Bach’s Mass in B minor BWV 232
Saturday, February 26, 2022 • 7:30 pm

Coming Home

Saturday, June 18, 2022 • 7:30 pm

A message from CMVA

Michael Porter, Artistic Director for CMVA, has been working diligently on finding a way for this incredible ensemble to perform. Opera Idaho has had a few small, socially-distanced events. Following social distancing guidelines in a small event with less than a handful of singers has been challenging, but not impossible. Choral singing with many participants presents many more challenges. For the moment, CMVA has to take an extended intermission.

While we may not be able to bring you choral music in person at this time, a few members of CMVA were able to gather recently and record the video above. There were strict social distancing guidelines in place to keep all our singers safe. Everyone had to wear a mask, remain six feet apart as they entered the Boise Philharmonic building, and were spaced 10 feet apart from each other in the large rehearsal hall. We hope you enjoy this beautiful piece.